Amazing Underground Secrets

This eye-catching 3-part series explores the wonders that lie hidden below the planet's surface. It's a world of surprising, dramatic, awe-inspiring and sometimes magical things, from underground telescopes to crystal caves, from meandering tunnels to massive caverns to whole cities. Getting there is only part of the challenge; returning safely is a feat in itself.

Amazing Underground Secrets Previous Broadcasts

Mastering The Underground World (Episode #103H)

KQED 9: Wed, Jul 30, 2014 -- 11:00 PM

It's a whole new world down there if we can conquer its challenges. Some of the greatest human minds have been engaged in making the underground safe and accessible. In this program we look at the most breathtaking feats of technology, past and present. From pick-axed tunnels to an excavated mountain, from Roman sewers to a vast 27km long particle accelerator - these are the ways we've harnessed the potential of this, the planet's last frontier.

Repeat Broadcasts:

KQED 9: Thu, Jul 31, 2014 -- 5:00 AM

Secrets & Treasures (Episode #102H)

KQED 9: Wed, Jul 23, 2014 -- 11:00 PM

The underground world is one of secrets, ideal for hiding everything from misdeeds to the world's greatest works of art. This program reveals some of the most exciting discoveries of buried treasure - then takes us to another kind of secret, the sort that governments like to hide, not just from their enemies, but from their own people. From ancient history right up to the present day, the underground world is the first choice for those seeking concealment.

Repeat Broadcasts:

KQED World: Sun, Jul 27, 2014 -- 5:00 PM

KQED Life: Sat, Jul 26, 2014 -- 4:00 AM

KQED Life: Fri, Jul 25, 2014 -- 10:00 PM

KQED 9: Thu, Jul 24, 2014 -- 5:00 AM

Natural Wonders (Episode #101H)

KQED 9: Wed, Jul 16, 2014 -- 11:00 PM

Much of the underground world is carved by nature; many of its greatest treasures are the result of elemental processes as old as the planet itself. We haven't been slow to make use of these extraordinary and dramatic spaces - they provide us with a record of our earliest history, if we know where to look. But it's a dangerous, often threatening realm, with its dark caverns, narrow environments and rushing water. Far from the light of day we join intrepid underground explorers as they push back the boundaries, make amazing discoveries and share sights of remarkable beauty.

TV Technical Issues

TV Technical Issues

We are aware that Comcast/Xfinity is currently not transmitting KQED Plus in HD on channel 710. KQED Plus is airing in SD
on channel 10. Comcast is also aware of the issue, and working on fixing it. Thank you for your patience.

We are aware that Comcast/Xfinity is currently not transmitting KQED Plus on channel 10, KQED V-Me on channel 191, or KQED
Kids on channel 192. Comcast is also aware of the issue, and working on fixing it. Thank you for your patience.

(includes all DT9, DT54 and DT25 channels, along with most paid signal providers) We will be doing maintenance work in our
Master Control area during the overnight hours of late Tues/early Wed 1/14. Work will begin shortly after midnight early Wednesday,
and should be done in 2-3 hours, perhaps sooner. This will result in all […]